Harnröhrenkatheter: Wozu dient er? Ist er schädlich?

Zuletzt aktualisiert: 18. Mai 2026

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Undoubtedly, that I, urologist, was getting used to this thing a “Foley catheterization procedure”. But in the contrary, patients instead that seems to be naive for this thing here; a urethral catheterization system always terrified them while putting this thing into their urethra. This topic will show on the general frequent asked questions which I always need to educate them before doing the procedure.

Fragen und Antworten zu Foley-Katheterisierung Verfahren

Q: Why do I need to be retaining the foley catheter?

A: Es sollte ein medizinischer Indikator vorliegen, z. B. die Unfähigkeit, selbst zu entleeren oder bei kritisch kranken Patienten den Urin zu kontrollieren.

F: Ist es schmerzhaft?

A: Pre-lubrication with anesthetic jelly significantly reduces urethral discomfort during the procedure. Evidence confirms this method reduces pain meaningfully.

Q: How long will it take to be removed?

A: Wenn keine medizinische Indikation für einen Foley-Katheter vorliegt, wird der Katheter schnell entfernt und Sie können wieder selbständig urinieren.

F: Wird der Katheter möglicherweise eine Komplikation verursachen?

• Urethral injury – if not handled by a specialist or skillful practitioner.
• Catheter-induced urinary tract infection – maintaining good hygiene significantly reduces this risk.

F: Wie lange ist die Lebensdauer eines Harnröhrenkathetersystems?

A: The urethral catheter system has 1 month long lasting to use and needs to be changed if the medical indicator still requires it.

Q: How do we take care of the urethral catheter at home?

• Always do hand hygiene before and after handling the catheter.
• Clean with soap, gentle cleaning agents or water.
• Keep the catheter away from kinking and obstruction.
• Always keep the drainage system closed.

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Häufig gestellte Fragen (FAQ)

Q1: What is a urethral (Foley) catheter used for?

A urethral catheter is a flexible tube inserted into the bladder through the urethra to drain urine. It is used when a patient cannot urinate independently due to urinary retention, after certain surgical procedures, or when precise urine output monitoring is required in critically ill patients. It is a routine urological procedure performed by trained medical professionals.

Q2: Is urethral catheterization painful?

While catheterization can cause some discomfort, a skilled urologist minimizes pain by applying anesthetic lubricating jelly inside the urethra before inserting the catheter. Clinical evidence confirms that this pre-lubrication technique significantly reduces urethral discomfort during the procedure. Most patients tolerate the procedure well with proper preparation and technique.

Q3: Can a urethral catheter cause a urinary tract infection?

Yes, catheter-associated urinary tract infection (CAUTI) is a recognized risk. However, maintaining strict hygiene, keeping the drainage system closed, and removing the catheter as soon as it is no longer medically necessary significantly reduces this risk. When catheterization is medically indicated, its benefits consistently outweigh the risks.

Q4: How long can a urethral catheter stay in place?

A standard urethral catheter can remain in place for up to one month before it needs to be changed. If the medical indication continues beyond one month, the catheter should be replaced with a new one. Your urologist will assess your condition regularly and remove the catheter as soon as it is no longer required.

Q5: How do I care for a urethral catheter at home?

Always wash your hands before and after handling the catheter, and wear clean gloves when managing the drainage bag. Clean the catheter and surrounding area with soap and water daily. Prevent the catheter tube from kinking, always keep the drainage bag below bladder level, and maintain a closed drainage system. Contact your urologist immediately if you notice fever, cloudy urine, or increased pain.

If you have concerns about urethral catheterization or urinary retention, Dr. Soarawee Weerasopone offers specialist consultations at Bangkok Hospital Headquarters. Beratungstermin buchen.

**Haftungsausschluss:** Dieser Inhalt wurde von Dr. Soarawee Weerasopone, einem Facharzt für Urologie am Bangkok Hospital Headquarters, verfasst und überprüft. Er dient ausschließlich Bildungszwecken und stellt keine medizinische Beratung dar. Konsultieren Sie immer einen qualifizierten Mediziner, bevor Sie eine medizinische Behandlung beginnen.